APA (7th ed.) Citation

Buchan, J. (1985). The thirty-nine steps. Chatto & Windus.

Chicago Style (17th ed.) Citation

Buchan, John. The Thirty-nine Steps. London: Chatto & Windus, 1985.

MLA (9th ed.) Citation

Buchan, John. The Thirty-nine Steps. Chatto & Windus, 1985.